i use home made stuff to muffle sound from compressor. Cardboard box covered with bunch of old blankets. Works like magic."The California Air compressors are very popular, they have a tank and are very quiet, not silent like a Bambi, SilAir or JunAir, But quiet enough to talk over. They are not that expensive either. There's a few folks on here who have them."
I am considering one of those, but I really need something fairly quiet.